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Hilux diff swap

Posted: Wed May 30, 2007 7:11 pm
by lump_a_charcoal
Hey Y'all...

I am planning to do a Hilux diff swap into my 92 sierra, which already has a spring over, and new springs.

I want to know what I will need for it?

Obviously a pair of diffs, and possibly different length shocks, but what else?

I am going to make up new spring perches for the lux diffs.

Is the Hilux tailshaft better to use than the sierra one?

What in terms of hooking up handbrake ?

Does the hilux diff have a 1 into 2 brake line?

What about steering rods?

Anything else I need to purchase before hand?

Thanks in advance...

Posted: Wed May 30, 2007 7:32 pm
by v840
A lux diff swap says that as a minimum you will be running 33s so I would also look into getting some sort of power steering system as it will suck without it.

Standard lux tie rod will do but you may need to get a draglink made up depending on what you do with your steering.

Personally, I would also run a seal kit and new bearings through both diffs as it is a shitload easier to do when they are not under the car. Do the brake pads/shoes too while you're at it.

For either of the shafts you will need to build a tcase/pinion flange adapter or re-drill the tcase/pinion flange in order for the bolt holes to line up.

Posted: Wed May 30, 2007 8:09 pm
by roc box
v840 wrote:A lux diff swap says that as a minimum you will be running 33s so I would also look into getting some sort of power steering system as it will suck without it.

Standard lux tie rod will do but you may need to get a draglink made up depending on what you do with your steering.

Personally, I would also run a seal kit and new bearings through both diffs as it is a shitload easier to do when they are not under the car. Do the brake pads/shoes too while you're at it.

For either of the shafts you will need to build a tcase/pinion flange adapter or re-drill the tcase/pinion flange in order for the bolt holes to line up.
if its wt some of the older lux shafts bolt straight up i believe.toyota corona power steer is as easy as it comes .

Posted: Thu May 31, 2007 4:07 pm
by lump_a_charcoal
Yep I left powersteering off the list, but I am planning on fitting it...

I was thinking of strengthening the diffs too..

Any more suggestions?

Posted: Thu May 31, 2007 7:10 pm
by NIK
Unless your getting real extreme I dont think you will need to strengthen the diffs. I think the transfer flange centre hole will have to be enlarged to use lux tial shafts. I have lux tie rod and overkill high steer ( will need to enlarge ball joint hole in pitman arm. Longer brake lines. I ran mine without p/s for awile with 33s at 10psi the missus could still drive.
Nik

Posted: Thu May 31, 2007 8:58 pm
by v840
roc box wrote:if its wt some of the older lux shafts bolt straight up i believe.toyota corona power steer is as easy as it comes .
Learn sumfin new every day. I love this site. :D

Posted: Sun Jun 03, 2007 8:57 am
by lump_a_charcoal
What about rotating the diff centres? Is it a necessity for the front one?

Posted: Sun Jun 03, 2007 4:14 pm
by lay80n
lump_a_charcoal wrote:What about rotating the diff centres? Is it a necessity for the front one?


What do you mean?

Layto....

Posted: Sun Jun 03, 2007 4:21 pm
by lump_a_charcoal
Basically cut the ends off the diff, rotate the diff centre a few degrees (so the pinion is pointing more towards the Tcase) and weld it back together.
It keeps your steering geometry right, and can give a better drive shaft angle...

Posted: Sun Jun 03, 2007 4:22 pm
by lay80n
lump_a_charcoal wrote:Basically cut the ends off the diff, rotate the diff centre a few degrees (so the pinion is pointing more towards the Tcase) and weld it back together.
It keeps your steering geometry right, and can give a better drive shaft angle...

Oh, you mean a knuckle cut and rotate. That will depend on what your caster will end up at when you have the diffs in at ride hight.

Layto....

Posted: Sun Jun 03, 2007 6:12 pm
by roc box
didnt touch mine angle is fine

Posted: Mon Jun 04, 2007 10:16 am
by Highway-Star
When you said rotate diffs, I thought you meant swap the front and rear centres, because the rear probably has more wear. I still think this is good idea (unless its never going to be out of 4WD, then its almost pointless). One of the great bits about hilux axles, front and rear centres are interchangable. :)

Posted: Mon Jun 04, 2007 10:22 am
by lump_a_charcoal
Ah like rotate tyres... I getcha...

Yeah thats not a bad idea, my problem is that it is never in 4x4 enough!

Posted: Mon Jun 04, 2007 3:01 pm
by Highway-Star
Yeah thats not a bad idea, my problem is that it is never in 4x4 enough!
I know this all too well :cry: